Home / 12,976.80-19,452.24-6,407.70

Finding the Fourth Proportional to 12,976.80, 19,452.24 and 6,407.70

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Solution

The fourth proportional to 12,976.80, 19,452.24 and 6,407.70 is: 9,605.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,976.80 : 19,452.24 = 6,407.70 : x
  2. Step 2: Convert to fraction form
    12,976.80/19,452.24 = 6,407.70/x
  3. Step 3: Cross multiply
    12,976.80x = 19,452.24 × 6,407.70
  4. Step 4: Simplify right side
    12,976.80x = 124,644,118.25
  5. Step 5: Solve for x
    x = 124,644,118.25/12,976.80
  6. Step 6: Final answer
    x = 9,605.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.